Collapse of a blade stiffened cylindrical shell under combined loads, Nx and Nxy

Figs. 27 and 28 from the 2002 PANDA2 paper. This slide shows nonlinear static collapse predicted by STAGS for a internal-blade-ring and external-blade-stringer stiffened, angle-ply, composite cylindrical shell under combined axial compression Nx = -700 lb/in and in-plane shear Nxy = +40 lb/in. The cylindrical shell was previously optimized by PANDA2.

Fig. 27 Mode of collapse

Fig. 28 Inner and outer fiber axial strain in the most critical finite element as a function of the load factor, PA. (PA = 1.0 is the design load factor.)

Page 14 / 35